Brasside is an access point at Brasside Pond, a Site of Special Scientific Interest located just north of the city of Durham, England.

The pond sits on the site of former clay pits, bounded by the River Wear to the south and Frankland Prison to the north, with a disused railway line dividing the area into two distinct sections.

The northern section contains two large ponds formed by flooding of the old clay workings, representing one of the largest expanses of unpolluted open water in County Durham and the county's most important wildfowl breeding site.

To the south of the old railway, the landscape transitions to a mix of small ponds, fen, and acid grassland. The site is reachable by public transport and serves as a starting or waypoint for walking and running routes in the area.